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Stator manufacturing method, stator and motor

A manufacturing method and stator technology, applied in the manufacture of stator/rotor body, motor generator, magnetic circuit shape/style/structure, etc., can solve problems such as difficulty in preventing stator block deviation

Inactive Publication Date: 2018-06-05
NIDEC TECHNO MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the stator disclosed in Japanese Laid-Open Publication No. 2000-197319, it is difficult to prevent the deviation of the stator blocks in the radial direction only by connecting the support parts adjacent in the circumferential direction, and it is difficult to align the stator blocks in a nearly perfect circle. shape

Method used

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  • Stator manufacturing method, stator and motor
  • Stator manufacturing method, stator and motor
  • Stator manufacturing method, stator and motor

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Embodiment Construction

[0029] Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings.

[0030] In addition, in this specification, in the motor 100, the direction parallel to the central axis C is called an "axial direction." In addition, in the axial direction, the direction from the stationary part 2 toward the rotating part 1 is referred to as "upward", and the direction from the rotating part 1 toward the stationary part 2 is referred to as "downward". In addition, among the surfaces of each constituent element, the surface directed upward in the axial direction is referred to as an "upper surface", and the surface directed downward in the axial direction is referred to as a "lower surface".

[0031] In addition, a direction perpendicular to the central axis C is referred to as a "radial direction", and a circumferential direction around the central axis C is referred to as a "circumferential direction". In addition, in the radial direction,...

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PUM

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Abstract

The invention proivdes a stator manufacturing method, a stator and a motor. The manufacturing method of the stator includes a stator member preparation step of preparing a stator member in which a wire is wound around a split core via an insulating member, and a covering step of covering the plurality of stator members with a resin material. The covering step includes a disposing step of disposinga plurality of stator members in a ring shape centered on the central axis in the mold, and a curing step of injecting the resin material into the mold and curing the same. In the disposing step, thetooth portions of the split cores extend outward from the core back of the split core and abut against the inner face of the mold in the radial direction. The core backs of the divided cores adjacentin the circumferential direction are in contact with each other.

Description

technical field [0001] The present invention relates to a manufacturing method of a stator, a stator, and a motor. Background technique [0002] Conventionally, motors having annular stators are known. For example, in Japanese Laid-Open Publication No. 2000-197319, first, a stator coupled body is obtained in which a plurality of stator blocks are connected through thin-walled portions. The stator block is composed of a tooth portion having thin-walled portions at both ends, a winding portion, and a core support portion. The winding portion is obtained by winding a coil around the winding portion of each stator block with the gap between the core support portions opened. The circular stator is obtained by bending the stator connecting body and connecting the core support portions. Furthermore, in the stator disclosed in Japanese Laid-Open Publication No. 2000-197319, the outer circumference of the stator becomes a perfect circle by the connection between the core support p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02H02K1/14
CPCH02K1/148H02K15/022H02K2201/15
Inventor 吉田达也
Owner NIDEC TECHNO MOTOR CORP